The impending divorce between Tiger Woods and Elin Nordegren is about to get a lot more contentious. Elin has decided to go for full custody of their two children, RadarOnline.comhas learned exclusively.

While the beautiful blonde still wants Tiger to be a big part of their children’s lives, she had decided not to agree to joint custody. It’s a significant behind-the-scenes development and one that could cause their quiet dissatisfaction with each other to turn into a loud public war.

Elin and Tiger live separate lives in separate houses, approximately a mile apart. Despite their close physical proximity they are worlds apart and barely speak to each other any more, sources told RadarOnline.com.

“They share the children,” one source told RadarOnline.com. “But the nannies drive the kids from house to house.

“Elin used to go to Tiger’s house but doesn’t anymore. And she has her people communicate with him so she doesn’t have to.”

The Swedish beauty recently took their two children to Sweden, sparking rumors that she may want to move back to her home country with the children. At the time, Elin and Tiger had informally agreed to a joint custody agreement.

“Elin isn’t saying that she’s moving to Sweden but she does want full custody now,” one source told us. “She has changed a lot since Tiger’s cheating was discovered and since he returned to golf, she’s distanced herself from him.

In the past two months Elin has traveled extensively without Tiger. She went to Sweden with their children, Arizona alone, South Florida with one of their children and Palm Beach County for a weekend with both children.